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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, 4WD, Part Time >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission Diagnostic Procedures >> System Description And Functional Operation >> Function Operation >> Transmission Control >> Drive Learn Procedure >> Procedure To Learn A Smooth 4--5 Upshift For 545RFE:

Procedure To Learn A Smooth 4--5 Upshift For 545RFE:

Use the following steps to have the PCM learn the ALT 2C CVI.

NOTE: The transmission oil temperature must be above 110°F (43°C).
  1. Accelerate the vehicle through 88 km/h (55 MPH) at a steady 10-15 degree throttle opening and perform multiple 4--5 upshifts.
  2. Repeat step 1) until the 4-5 shift become smooth and the ALT 2C CVI become stable.
NOTE: There is a separate ALT 2C CVI volume used and learned for 4--5 shifts. It is independent of the 2C CVI learned on 3-2 kickdowns.
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